/give @p minecraft:player_head[
minecraft:profile={
properties: [{
name: "textures",
value: "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHBzOi8vdGV4dHVyZXMubWluZWNyYWZ0Lm5ldC90ZXh0dXJlL3VuZGVmaW5lZCJ9fX0="
}]
}
]
The tool of choice for dismemberment, currently in idle format.
With some minor edits, this is ready for 1.8